feat(HEL-490): 剩余行情改由数据中枢主线路提供

正式页面以 8766 为主线路，旧接口只作故障备用；compose 钉死全部 DATAHUB_READ_*，避免现网残留 0 造成假完成。

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: multica-agent <github@multica.ai>

frontend/shared/admin.js

@@ -44,6 +44,7 @@ async function openAdminSettings(refreshOnly = false) {
     status.textContent = `Tushare ${data.configured ? "已配置" : "未配置"} · iFinD ${ifind.configured ? "已配置" : "未配置"} · ${number(data.snapshot_dates)} 个交易日`;
     status.classList.toggle("connected", Boolean(data.configured));
     setText("systemDataStatus", data.background_refresh_enabled ? "后台刷新已启用" : "后台刷新已暂停");
+    renderDatahubRouteStatus(data.datahub || {});
     document.querySelector("#systemTokenInput").value = "";
     document.querySelector("#systemIfindTokenInput").value = "";
     document.querySelector("#systemBackgroundRefresh").checked = Boolean(data.background_refresh_enabled);
@@ -55,6 +56,26 @@ async function openAdminSettings(refreshOnly = false) {
   }
 }
 
+function renderDatahubRouteStatus(hub) {
+  const box = document.querySelector("#datahubRouteStatus");
+  if (!box) return;
+  const label = box.querySelector("span");
+  const enabled = number(hub.enabled_reads);
+  const total = number(hub.total_reads) || enabled;
+  const fallbacks = hub.fallback_labels || [];
+  if (fallbacks.length) {
+    box.dataset.tone = "warning";
+    if (label) label.textContent = `数据中枢主线路 ${enabled}/${total} · 备用 ${fallbacks.length} 类：${fallbacks.join("、")}`;
+    return;
+  }
+  box.dataset.tone = hub.configured ? "success" : "idle";
+  if (label) {
+    label.textContent = hub.configured
+      ? `数据中枢主线路 ${enabled}/${total}，当前无备用`
+      : "数据中枢尚未配置，网站仍走原接口";
+  }
+}
+
 function selectAdminPanel(panel) {
   const selected = ["market", "models", "members"].includes(panel) ? panel : "market";
   document.querySelector("#adminSectionSelect").value = selected;